# AD 66-27-01: Aileron Center Hinge Clevis

- Type: Airworthiness directive
- Status: Current
- Products: Boeing 707-300B Series and 707-300C Series
- Effective: November 2, 1966
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-297
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C5486D0AE6289B738625682E005B0803.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/66-27-01

## The airworthiness directive

66-27-01 BOEING: Amdt. 39-297 Part 39 Federal Register November 2, 1966. Applies to Models 707-300B and -300C Series Airplanes, Serial Numbers 18922, 18926, 18937, 18953, 18960, 18964, 18975, 18976, 18977, and 18991.

Compliance required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished.

Visually inspect the inboard aileron center hinge clevis for cracks or evidence of hammer-peening using a glass of at least 5-power in accordance with Section 3 of Boeing Service Bulletin No. 2377 or later FAA-approved revision or an equivalent approved by the Chief, Aircraft Engineering Division: FAA Western Region. Replace cracked parts and parts showing evidence of hammer-peening before further flight with a new part of the same part number or a part inspected in accordance with this AD and found free of cracks and evidence of hammer-peening.

This directive effective November 2, 1966.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 4A26](https://openairdocs.org/tcds/4A26): The Boeing Company; names 2 of 4 models: 707-300B Series, 707-300C Series

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 6 (6 by airframe model, 0 by engine model)
- Makers: Boeing 6

Models with the most aircraft:

- [Boeing 707-338C](https://openairdocs.org/model/boeing-707-338c): 2 aircraft (airframe model)
- [Boeing 707-368C](https://openairdocs.org/model/boeing-707-368c): 1 aircraft (airframe model)
- [Boeing 707-321B](https://openairdocs.org/model/boeing-707-321b): 1 aircraft (airframe model)
- [Boeing 707-323B](https://openairdocs.org/model/boeing-707-323b): 1 aircraft (airframe model)
- [Boeing 707-351B](https://openairdocs.org/model/boeing-707-351b): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/66-27-01/models.md
Every aircraft: https://openairdocs.org/ad/66-27-01/aircraft.md

Its text cites no advisory circulars or STCs.

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